Tray mold for use in the manufacture of chocolate bars and the like



Feb. 2, 1932. 1 H w, s x 1,843,306

TRAY MOLD FOR USE IN THE MANUFACTURE OF CHOCOLATE BARS AND THE LIKE Filed March 14, 1951 3 Sheets-Sheet l Feb. 2, 1932. H. w. SMITH 1,843,306

TRAY MOLD EOR USE IN THE MANUFACTURE OF CHOCOLATE BARS AND THE LIKE Filed March 14, 1931 6 5 Jlgu5.

3 Sheets-Sheet 2 Feb. 2, 1932. w. SMITH 7 1,843,306

TRAY MOLD FOR USE IN THE MANUFACTURE OF CHOCOLATE BARS AND THE LIKE Filed March 14, 1931 3 Sheets-Sheet 3 Patented Feb. 2, 1932 I UNETED STTES PAT T; OFFICE? HENRY WILLIAM SMITH, OF BIRMINGHAM; ENGLAND TRAY MOLD FOR USE in THE MANUFACTURE or CHOCOLATE BAnsAnn 'rnnnrxn Application filed March 14, 1931, Serial No. 522,597, and in Great Britain September 22, 1930. v

The present'invention has relationto tray 7 molds for use in the manufacture of chocolate bars and the like, of the type comprising a sheet metal or like tray of shallow molds arranged side by side, the a present invention having for its object to provide for the increased strength of such a device whereby it shall easily withstand the vibration to which it is subjected when pass- 10 ing through the chocolate making mechanism in the operationof separating the bars from the mold.

According to the present invention a plurality of independently constructed sheet metal molds are held in assembled relationship through the inedium of longitudinally disposed strips of sheet metal which are connected to the various molds along their edges by means of an interlocking lap joint constituted by a single hook-like flangeon the strip which is engaged by corresponding hook-like flanges on each of the molds. The

. molds may be of a single duplex or triplex character, a series of such molds being united by the interlocking lap joint aforesaid, ef-

fected between the molds and the longitudinal strip. 7 V In order that this invention may be clearly understood and readily carried into practice, reference may be had to the appended eX- planatory sheet of drawings, upon which Figure 1 is a plan view of a tray mold constructed in accordance with the present in vention. V

Figure 2 is a longitudinal section taken on the line 2-2 of Figure 1. V

Figure 3 is a transverse section taken on the line 33 of Figure 1'. V

Figure t is an inverted plan View of the 40 mold shown in Figure 1. i

gigure 5 is a plan view of a modified mold, an Figure 6 is a plan view of a further modified mold.

Figure 7 is an inverted plan view of the mold shown in Figure 6.

Figure 8 is an inverted plan'view illustrating a still further modification hereinafter referred to. I y In a convenient'embodiment of the present having a plurality invention each' mold a is stamped or pressed" up: from into a configuration "adapted to constitute a bar of chocolate of; any well known ori'de sired section. These molds comprise'a cavitous portion surrounded by a peripheral flange a and it is with respect to the attachment of this peripheral flange to a peripheral tray portion in the same plane that the present invention is particularly directed. The molds a maybe constructed separately and 1 independently of one anotherland arranged side'by side as shownin the Figures 1, 2 and 8, and be individually attached'to the pe ripheral tray portion 1) which comprises two longitudinal and two endistrips of sheet metalsuitably united at the corners 6 In thisinv-entionjthe end portions 2 of the moldsa are attached to the longitudinal'pe riphe ral parts bconstit'uting the sides'of the tray by adjacent edges of these members .being turned over to a "U. or hook" formation asat a b (Figure 3) andsaid formations being interenga'ged and'the seam'orunion thereby constituted being afterwards-advantageously pressed in such-a manner that the peripheral'tray part lies flush with the'top plane-of the molds, and the seam or union flattened to either a substantially "semi-circular section or a flat' oblong section, as may be found most desirable. Such an interlocking seam or lapjoint as a 6 provided between the'longitudinal strips 79' and the eX- tremitiesof the molds not only eflicientl'y secures the whole assembly, but very'considerably strengthens I thewhole device against warping or twisting. The outer peripheral parts bwhich are constituted from thefelongated strips of sheet metal may be jcon-' structed' with, downwardly directed T double thickness flanges b at their outer edgesiin well known manner. The corners b may be eflected. by overlapping incombination with soldering.'-- Not only may the eXtremities a of the molds be connected to the pe ripheral parts I) of the tray by the aforesaid interlocking lap joint but the end molds a to the end strips 7) of the tray and the lap jointing operation in any instance may be sheet I netalto an oblong formation 'may have their side edges a lap jointed assisted by soldering more particularly at the various corners.

In the modification illustrated in Figure 5, the molds are constructed in pairs or a and a double or interlocking seam or lap joint is effected between the ends a of the molds a in the longitudinal strips 6. Further, a double or interlocking seam or lap joint 01 is effected between one duplex mold and the adjacent duplex mold, that is to say, that instead of the molds being placed side by sidewithabutting edges as in the preceding arrangement, a double or interlocking seamor lap joint is effected between the respective molds.

In the modification illustrated in Figure 6 each of the molds indicated by the reference letter a are constructed independently and are aggregated together withv their edges v abutting and initially assembled by means of rods 0 which are located by a soldering'operation. In this modification however, as in the preceding arrangements longitudinal strips 6 are utilized which unite the seriesof trays a by means of double or interlockingv seam or lap joints 6'.

In the modification shown in Figure 8 a plurality of Dshaped reinforcing rods (Z are utilized and also a rectangular-shaped rod al In any of the modifications rods such as 0 (Z al may be utilized for strengthening either the series of molds or theperipheral tray part,or both, the said rods-being assembled upon the underside of the tray by a suitable soldering operation, in fact soldering may assist the union of any of the partswhen and where desirable.

What I claim as my invention and desire to secure by LettersPatent is: i 1. A tray mold comprisingaframe, a plurality of marginally flanged molds disposed within said frame, the marginal lateral flanges of the molds being disposed inedge to edge abutting relation,means for securing the end flanges-of the molds to theframe, and strips extending in underlying relation to the abutting flanges of the molds andsecured to said flanges and to-the frame.

2. A tray moldzcomprising. azframe, a, plurality of marginally flanged molds disposed withinsaid frame in sideto side and end to end relation, means securing. the outermost flangesof the outermost: molds tothe frame, and strips extending inunderlyingrelation to the side and end abutting flanges of the molds and secured to said flanges and tothe frame.

In witness whereof I have hereunto set my hand.

HENRY WILLIAM: SMITH. 

